If you are referring to the Nephilim, they apparently had five fingers and a thumb on each hand. Also, six toes on each of their feet. There have been bones found to prove this, but they have been kept out of the public eye for obvious reasons. They were also found to have double rows of teeth, talk about totally weird. When the Annunaki visited our ancestors in the pre-flood world they were attracted to the women of the earth at that time, thus they interbred with human women resulting in the Nephilim. For some reason they could only produce male offspring and there is much evidence that these hybrid humans were very violent indeed. They were the giants spoken of in the early pages of the book of Genesis. Half human half Annunaki. They caused so much havoc on earth at the time, that god had to wipe the slate clean and start things over with the deluge, saving a handful of humans and animals of pure blood.